Alexander Greff, PA-C
NPI 1578182564 · Physician Assistant · Shiloh, IL
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Alexander Greff, PA-C is a Physician Assistant provider in Shiloh, IL (NPI 1578182564).
Provider details
- NPI number
- 1578182564
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 085.008210 (IL)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
6 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
262 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 150 | $110 |
| Professional Service for Multiple Injections of Allergen95117 | 64 | $10 |
| Test to Measure Rate of Airflow94375 | 23 | $32 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 14 | $78 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 11 | $145 |
Typical Medicare-allowed amounts for these services range $10–$145 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 13 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Montelukast Sodium | 65 | 21 |
| Ipratropium Bromide | 41 | 18 |
| Azelastine Hcl | 41 | 21 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 38 | — |
| Fluticasone Propionate | 28 | 14 |
| Epinephrine | 25 | 21 |
| Fluticasone/Umeclidin/Vilanterbrand: Trelegy Ellipta | 24 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$943 across 56 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2020-04-10
- Last updated
- 2022-02-16
- Certified
- 2022-02-16
Frequently asked questions
- What is Alexander Greff's NPI number?
- Alexander Greff's National Provider Identifier (NPI) is 1578182564, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Alexander Greff's specialty?
- Alexander Greff is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Alexander Greff located?
- Alexander Greff's practice location on file with NPPES is 325 Tamarack Ln, Shiloh, IL 62269-2993.
- What is Alexander Greff's phone number?
- The practice phone number listed in the NPPES registry for Alexander Greff is (618) 624-2060.
- Does Alexander Greff accept Medicare?
- Alexander Greff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Alexander Greff's NPI active?
- Yes — Alexander Greff's NPI (1578182564) is active in the NPPES registry as of the last update on 2022-02-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.